Notices by Jana (janamarie@chaos.social)

OV2640 > ESP32 > Serial (pixeldata) > python (png assembly) > PNG. Now working backwards to have the ESP32 building the PNG. This was (is) a journey, but sooo close to a self-contained, esp32 pixel-art camera!! ._. (thanks @fionafokus <3)

NO WAY, it works :'D I can now take indexed PNG images with custom color-palettes on an ESP32! Next up, SD card storage (currently they are bytewise transferred through serial) and live preview on a display. Then maybe just build a small custom board, like a 10$ pixel-art-camera? C:

funfact: the resulting image still contains the full 8 bit grayscale data, it just indexes it to an arbitrary amount of colors! Eight in the image above. This should allow me to use any color palette up to 256 colors with mapping curves, furthermore, I can also capture RGB images and use color-matching to try to match RGB-palettes to the real photo!

proof-of-concept C:

(Quality is still terrible, many in camera parameters need to be worked on, it’s terrible slow, but, it works!)

schematic and placement: ✅

see, it all makes sense

ship it

(cc @fionafokus :3 )

I sometimes feel like it’s a law of nature that I can never get a PSRAM/SPI-Flash footprint right

I’m also kinda proud to say that this is my first UART RX/TX mixup since probably 2020! It was long overdue :3

:3

@foone it’s a good printer! Bought it sooo many years ago and it still serves me well

🥺

@23n27 @mntmn yea

I have a question: I have an analog camera to repair and in order to do so, I will need to remove the artificial leather it is wrapped in. Afterwards, I can of course re-glue it back to the body, however I could also replace it since it is a bit used up anyways. Now I was wondering, which material could I use here? What vegan leather-style materials are there? In what could I wrap the camera body? (not looking for anything super soft, furry or denim, rather something leathery)

this is the camera in question btw, you can see the black faux leather right next to the lenses

hmmh, @mntmn where do you get your piñatex from? :3

@timonsku @mntmn you mean like this ^^ https://github.com/Jana-Marie/PD-Injector not sure if the USB 3.0 lanes work though, they might be flipped, USB2.0 + PD works great

whoooooow, TIL you can send a HID report/command to a specific reportID of your @mntmn keyboard with a bitmap and it will display it!! So cool! :O

Now I want to build a tool that shows the keyboards language (de, en or zh) on the display

I think I have teased this already, so here it is:
Proudly presenting “ligra”, an open source projector/projection (LiGra – Light Graffiti) platform, allowing you to broadcast your messages, your logos, your artwork, whatever you need others to hear, to whoever sees it! :3

With ligra I wanted to explore image-projection and especially projections on the cheap, so I went to my local flea market and built a platform around old camera lenses. You can find two of them in the wild at #GPN22

Have you ever considered..